It looks very nice. How do you keep your sand so white. I just had to take out all of my sand due to Cyanobacter. Now I am preparing a new sand. One more question- how often do you feed Tubastrea? It is looking very nice.

A good skimmer, ro/di water, and a decent c.u.c. contributes nicely to my sand I feed my sun coral about every other day to every 3 days

How much flow do you have? I also have a 90 gallon with two koralia 1400 with the controller and a mag 9 return.

My corals seem happy when I alternate the wavemakers but when I run them at the same time my Kenya trees don't do so good but my sand stays clean. When I alternate the wavemakers my sand has a lot of detritus until my lights go off and then my CUC cleans it all up or atleast 90% of it.